77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
//
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// handler_base_from_member.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_DETAIL_HANDLER_BASE_FROM_MEMBER_HPP
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#define ASIO_DETAIL_HANDLER_BASE_FROM_MEMBER_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/handler_alloc_helpers.hpp"
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#include "asio/detail/handler_invoke_helpers.hpp"
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namespace asio {
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namespace detail {
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// Base class for classes that need a handler data member. Forwards the custom
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// allocation and invocation hooks to the contained handler.
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template <typename Handler>
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class handler_base_from_member
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{
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public:
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handler_base_from_member(Handler handler)
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: handler_(handler)
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{
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}
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//protected:
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Handler handler_;
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protected:
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// Protected destructor to prevent deletion through this type.
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~handler_base_from_member()
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{
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}
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};
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template <typename Handler>
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inline void* asio_handler_allocate(std::size_t size,
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handler_base_from_member<Handler>* this_handler)
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{
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return asio_handler_alloc_helpers::allocate(
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size, &this_handler->handler_);
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}
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template <typename Handler>
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inline void asio_handler_deallocate(void* pointer, std::size_t size,
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handler_base_from_member<Handler>* this_handler)
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{
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asio_handler_alloc_helpers::deallocate(
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pointer, size, &this_handler->handler_);
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}
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template <typename Function, typename Handler>
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inline void asio_handler_invoke(const Function& function,
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handler_base_from_member<Handler>* this_handler)
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{
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asio_handler_invoke_helpers::invoke(
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function, &this_handler->handler_);
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}
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_HANDLER_BASE_FROM_MEMBER_HPP
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